← Commit list

ef2cf58c77

Daniel Stenberg
Daniel Stenberg
2023-12-22
SUCCESS Duration: 178s

Subject

mprintf: overhaul and bugfixes

Binary

Download Binary (850 KB)

Architecture & Compiler Flags

Architecture: x86_64-linux-gnu Compiler: gcc (Ubuntu 11.4.0-1ubuntu1~22.04.3) 11.4.0

—

Build Log

$ git checkout -f ef2cf58c77fc92960695d6669648f92ca4792e9c
Previous HEAD position was 35380273b9 http2: improved on_stream_close/data_done handling
HEAD is now at ef2cf58c77 mprintf: overhaul and bugfixes

$ git clean -fdx
Removing Makefile
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$ autoreconf -fi
libtoolize: putting auxiliary files in '.'.
libtoolize: copying file './ltmain.sh'
libtoolize: putting macros in AC_CONFIG_MACRO_DIRS, 'm4'.
libtoolize: copying file 'm4/libtool.m4'
libtoolize: copying file 'm4/ltoptions.m4'
libtoolize: copying file 'm4/ltsugar.m4'
libtoolize: copying file 'm4/ltversion.m4'
libtoolize: copying file 'm4/lt~obsolete.m4'
libtoolize: Remember to add 'LT_INIT' to configure.ac.
configure.ac:123: installing './compile'
configure.ac:424: installing './config.guess'
configure.ac:424: installing './config.sub'
configure.ac:123: installing './install-sh'
configure.ac:129: installing './missing'
docs/examples/Makefile.am: installing './depcomp'
parallel-tests: installing './test-driver'

$ bash -c find . -name config.guess -exec cp /usr/share/misc/config.guess {} \;

$ bash -c find . -name config.sub -exec cp /usr/share/misc/config.sub {} \;

$ chmod +x configure

$ ./configure --disable-shared --without-ssl --disable-docs
checking whether to enable maintainer-specific portions of Makefiles... no
checking whether make supports nested variables... yes
checking whether to enable debug build options... no
checking whether to enable compiler optimizer... (assumed) yes
checking whether to enable strict compiler warnings... no
checking whether to enable compiler warnings as errors... no
checking whether to enable curl debug memory tracking... no
checking whether to enable hiding of library internal symbols... yes
checking whether to enable c-ares for DNS lookups... no
checking whether to disable dependency on -lrt... (assumed no)
checking whether to enable ECH support... no
checking for path separator... :
checking for sed... /usr/bin/sed
checking for grep... /usr/bin/grep
checking that grep -E works... yes
checking for ar... /usr/bin/ar
checking for a BSD-compatible install... /usr/bin/install -c
checking for gcc... ccache gcc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables... 
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether the compiler supports GNU C... yes
checking whether ccache gcc accepts -g... yes
checking for ccache gcc option to enable C11 features... none needed
checking whether ccache gcc understands -c and -o together... yes
checking how to run the C preprocessor... ccache gcc -E
checking for stdio.h... yes
checking for stdlib.h... yes
checking for string.h... yes
checking for inttypes.h... yes
checking for stdint.h... yes
checking for strings.h... yes
checking for sys/stat.h... yes
checking for sys/types.h... yes
checking for unistd.h... yes
checking for stdatomic.h... yes
checking if _Atomic is available... yes
checking for a sed that does not truncate output... (cached) /usr/bin/sed
checking for code coverage support... no
checking whether build environment is sane... yes
checking for a race-free mkdir -p... /usr/bin/mkdir -p
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking whether make supports the include directive... yes (GNU style)
checking dependency style of ccache gcc... gcc3
checking curl version... 8.6.0-DEV
checking for httpd... no
checking for apache2... no
checking for apachectl... no
checking for apxs... no
configure: httpd/apache2 not in PATH, http tests disabled
configure: apxs not in PATH, http tests disabled
checking for nghttpx... no
checking for caddy... no
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configure: disables HSTS due to lack of SSL
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checking that generated files are newer than configure... done
configure: creating ./config.status
config.status: creating Makefile
config.status: creating docs/Makefile
config.status: creating docs/examples/Makefile
config.status: creating docs/libcurl/Makefile
config.status: creating docs/libcurl/opts/Makefile
config.status: creating docs/cmdline-opts/Makefile
config.status: creating include/Makefile
config.status: creating include/curl/Makefile
config.status: creating src/Makefile
config.status: creating lib/Makefile
config.status: creating scripts/Makefile
config.status: creating lib/libcurl.vers
config.status: creating lib/libcurl.plist
config.status: creating tests/Makefile
config.status: creating tests/config
config.status: creating tests/certs/Makefile
config.status: creating tests/certs/scripts/Makefile
config.status: creating tests/data/Makefile
config.status: creating tests/server/Makefile
config.status: creating tests/libtest/Makefile
config.status: creating tests/unit/Makefile
config.status: creating tests/http/config.ini
config.status: creating tests/http/Makefile
config.status: creating tests/http/clients/Makefile
config.status: creating packages/Makefile
config.status: creating packages/vms/Makefile
config.status: creating curl-config
config.status: creating libcurl.pc
config.status: creating lib/curl_config.h
config.status: executing depfiles commands
config.status: executing libtool commands
configure: Configured to build curl/libcurl:

  Host setup:       x86_64-pc-linux-gnu
  Install prefix:   /usr/local
  Compiler:         ccache gcc
   CFLAGS:          -Werror-implicit-function-declaration -O2 -Wno-system-headers
   CPPFLAGS:        
   LDFLAGS:         
   LIBS:            -lpsl -lz

  curl version:     8.6.0-DEV
  SSL:              no      (--with-{openssl,gnutls,mbedtls,wolfssl,schannel,secure-transport,amissl,bearssl,rustls} )
  SSH:              no      (--with-{libssh,libssh2})
  zlib:             enabled
  brotli:           no      (--with-brotli)
  zstd:             no      (--with-zstd)
  GSS-API:          no      (--with-gssapi)
  GSASL:            no      (libgsasl not found)
  TLS-SRP:          no      (--enable-tls-srp)
  resolver:         POSIX threaded
  IPv6:             enabled
  Unix sockets:     enabled
  IDN:              no      (--with-{libidn2,winidn})
  Build libcurl:    Shared=no, Static=yes
  Built-in manual:  enabled
  --libcurl option: enabled (--disable-libcurl-option)
  Verbose errors:   enabled (--disable-verbose)
  Code coverage:    disabled
  SSPI:             no      (--enable-sspi)
  ca cert bundle:   no
  ca cert path:     
  ca fallback:      
  LDAP:             no      (--enable-ldap / --with-ldap-lib / --with-lber-lib)
  LDAPS:            no      (--enable-ldaps)
  RTSP:             enabled
  RTMP:             no      (--with-librtmp)
  PSL:              enabled
  Alt-svc:          enabled (--disable-alt-svc)
  Headers API:      enabled (--disable-headers-api)
  HSTS:             no      (--enable-hsts)
  HTTP1:            enabled (internal)
  HTTP2:            no      (--with-nghttp2)
  HTTP3:            no      (--with-ngtcp2 --with-nghttp3, --with-quiche, --with-msh3)
  ECH:              no      (--enable-ech)
  WebSockets:       no      (--enable-websockets)
  Protocols:        DICT FILE FTP GOPHER HTTP IMAP IPFS IPNS MQTT POP3 RTSP SMTP TELNET TFTP
  Features:         AsynchDNS IPv6 Largefile PSL UnixSockets alt-svc libz threadsafe

configure: WARNING: unrecognized options: --disable-docs
configure: WARNING: Cannot find libraries for LDAP support: LDAP disabled
configure: WARNING: libgsasl was not found
configure: WARNING: Cannot find libraries for IDN support: IDN disabled
configure: WARNING: unrecognized options: --disable-docs

$ make -j3
Making all in lib
make[1]: Entering directory '/root/asi_db/builds/curl/_worktrees/w0/lib'
make  all-am
make[2]: Entering directory '/root/asi_db/builds/curl/_worktrees/w0/lib'
  CC       libcurl_la-altsvc.lo
  CC       libcurl_la-amigaos.lo
  CC       libcurl_la-asyn-ares.lo
  CC       libcurl_la-asyn-thread.lo
  CC       libcurl_la-base64.lo
  CC       libcurl_la-bufq.lo
  CC       libcurl_la-bufref.lo
  CC       libcurl_la-c-hyper.lo
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  CC       libcurl_la-dict.lo
  CC       libcurl_la-doh.lo
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  CC       libcurl_la-hmac.lo
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  CC       libcurl_la-imap.lo
  CC       libcurl_la-inet_ntop.lo
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  CC       libcurl_la-ldap.lo
  CC       libcurl_la-llist.lo
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  CC       libcurl_la-md5.lo
  CC       libcurl_la-memdebug.lo
  CC       libcurl_la-mime.lo
  CC       libcurl_la-mprintf.lo
  CC       libcurl_la-mqtt.lo
  CC       libcurl_la-multi.lo
  CC       libcurl_la-netrc.lo
  CC       libcurl_la-nonblock.lo
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  CC       vtls/libcurl_la-vtls.lo
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  CC       vssh/libcurl_la-libssh.lo
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  CCLD     libcurl.la
make[2]: Leaving directory '/root/asi_db/builds/curl/_worktrees/w0/lib'
make[1]: Leaving directory '/root/asi_db/builds/curl/_worktrees/w0/lib'
Making all in src
make[1]: Entering directory '/root/asi_db/builds/curl/_worktrees/w0/src'
Making all in ../docs
make[2]: Entering directory '/root/asi_db/builds/curl/_worktrees/w0/docs'
Making all in .
make[3]: Entering directory '/root/asi_db/builds/curl/_worktrees/w0/docs'
if test "..x" != "..x" -a -e "./curl.1"; then \
	/usr/bin/install -c -m 644 "./curl.1" /root/asi_db/builds/curl/_worktrees/w0/docs/curl.1 \
	&& touch -r "./curl.1" /root/asi_db/builds/curl/_worktrees/w0/docs/curl.1; fi
cd cmdline-opts && make
make[4]: Entering directory '/root/asi_db/builds/curl/_worktrees/w0/docs/cmdline-opts'
  GENERATE ../../docs/curl.1
make[4]: Leaving directory '/root/asi_db/builds/curl/_worktrees/w0/docs/cmdline-opts'
make[3]: Leaving directory '/root/asi_db/builds/curl/_worktrees/w0/docs'
Making all in cmdline-opts
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make[3]: Nothing to be done for 'all'.
make[3]: Leaving directory '/root/asi_db/builds/curl/_worktrees/w0/docs/cmdline-opts'
make[2]: Leaving directory '/root/asi_db/builds/curl/_worktrees/w0/docs'
make[2]: Entering directory '/root/asi_db/builds/curl/_worktrees/w0/src'
  CC       tool_bname.o
  CC       tool_binmode.o
  CC       slist_wc.o
  CC       tool_cb_dbg.o
  CC       tool_cb_hdr.o
  CC       tool_cb_prg.o
  CC       tool_cb_rea.o
  CC       tool_cb_see.o
  CC       tool_cb_wrt.o
  CC       tool_cfgable.o
  CC       tool_dirhie.o
  CC       tool_doswin.o
  CC       tool_easysrc.o
  CC       tool_filetime.o
  CC       tool_findfile.o
  CC       tool_getparam.o
  CC       tool_formparse.o
  CC       tool_getpass.o
  CC       tool_help.o
  CC       tool_helpers.o
  HUGE     tool_hugehelp.c
  CC       tool_ipfs.o
  CC       tool_libinfo.o
  CC       tool_listhelp.o
  CC       tool_main.o
  CC       tool_msgs.o
  CC       tool_operate.o
  CC       tool_operhlp.o
  CC       tool_paramhlp.o
  CC       tool_parsecfg.o
  CC       tool_progress.o
  CC       tool_setopt.o
  CC       tool_sleep.o
  CC       tool_stderr.o
  CC       tool_strdup.o
  CC       tool_urlglob.o
  CC       tool_util.o
  CC       tool_vms.o
  CC       tool_writeout.o
  CC       tool_writeout_json.o
  CC       tool_xattr.o
  CC       var.o
  CC       ../lib/base64.o
  CC       ../lib/curl_multibyte.o
  CC       ../lib/dynbuf.o
  CC       ../lib/nonblock.o
  CC       ../lib/strtoofft.o
  CC       ../lib/timediff.o
  CC       ../lib/version_win32.o
  CC       ../lib/warnless.o
  CC       tool_hugehelp.o
  CCLD     curl
make[2]: Leaving directory '/root/asi_db/builds/curl/_worktrees/w0/src'
make[1]: Leaving directory '/root/asi_db/builds/curl/_worktrees/w0/src'
make[1]: Entering directory '/root/asi_db/builds/curl/_worktrees/w0'
make[1]: Nothing to be done for 'all-am'.
make[1]: Leaving directory '/root/asi_db/builds/curl/_worktrees/w0'

Commit Diff GitHub →

lib/mprintf.c +610 -572tests/libtest/lib557.c +42 -14tests/unit/unit1398.c +1 -1
lib/mprintf.c+610 -572
@@ -20,21 +20,6 @@
*
* SPDX-License-Identifier: curl
*
- *
- * Purpose:
- * A merge of Bjorn Reese's format() function and Daniel's dsprintf()
- * 1.0. A full blooded printf() clone with full support for <num>$
- * everywhere (parameters, widths and precisions) including variabled
- * sized parameters (like doubles, long longs, long doubles and even
- * void * in 64-bit architectures).
- *
- * Current restrictions:
- * - Max 128 parameters
- * - No 'long double' support.
- *
- * If you ever want truly portable and good *printf() clones, the project that
- * took on from here is named 'Trio' and you find more details on the trio web
- * page at https://daniel.haxx.se/projects/trio/
*/
#include "curl_setup.h"
@@ -87,7 +72,8 @@
#define BUFFSIZE 326 /* buffer for long-to-str and float-to-str calcs, should
fit negative DBL_MAX (317 letters) */
-#define MAX_PARAMETERS 128 /* lame static limit */
+#define MAX_PARAMETERS 128 /* number of input arguments */
+#define MAX_SEGMENTS 128 /* number of output segments */
#ifdef __AMIGA__
# undef FORMAT_INT
@@ -99,31 +85,33 @@ static const char lower_digits[] = "0123456789abcdefghijklmnopqrstuvwxyz";
/* Upper-case digits. */
static const char upper_digits[] = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
-#define OUTCHAR(x) \
- do { \
- if(stream((unsigned char)(x), (FILE *)data) != -1) \
- done++; \
- else \
- return done; /* return immediately on failure */ \
+#define OUTCHAR(x) \
+ do { \
+ if(!stream(x, userp)) \
+ done++; \
+ else \
+ return done; /* return on failure */ \
} while(0)
/* Data type to read from the arglist */
typedef enum {
- FORMAT_UNKNOWN = 0,
FORMAT_STRING,
FORMAT_PTR,
- FORMAT_INT,
FORMAT_INTPTR,
+ FORMAT_INT,
FORMAT_LONG,
FORMAT_LONGLONG,
+ FORMAT_INTU,
+ FORMAT_LONGU,
+ FORMAT_LONGLONGU,
FORMAT_DOUBLE,
FORMAT_LONGDOUBLE,
- FORMAT_WIDTH /* For internal use */
+ FORMAT_WIDTH,
+ FORMAT_PRECISION
} FormatType;
/* conversion and display flags */
enum {
- FLAGS_NEW = 0,
FLAGS_SPACE = 1<<0,
FLAGS_SHOWSIGN = 1<<1,
FLAGS_LEFT = 1<<2,
@@ -143,23 +131,40 @@ enum {
FLAGS_PRECPARAM = 1<<16, /* precision PARAMETER was specified */
FLAGS_CHAR = 1<<17, /* %c story */
FLAGS_FLOATE = 1<<18, /* %e or %E */
- FLAGS_FLOATG = 1<<19 /* %g or %G */
+ FLAGS_FLOATG = 1<<19, /* %g or %G */
+ FLAGS_SUBSTR = 1<<20 /* no input, only substring */
};
-struct va_stack {
- FormatType type;
- int flags;
- long width; /* width OR width parameter number */
- long precision; /* precision OR precision parameter number */
+enum {
+ DOLLAR_UNKNOWN,
+ DOLLAR_NOPE,
+ DOLLAR_USE
+};
+
+/*
+ * Describes an input va_arg type and hold its value.
+ */
+struct va_input {
+ FormatType type; /* FormatType */
union {
char *str;
void *ptr;
- union {
- mp_intmax_t as_signed;
- mp_uintmax_t as_unsigned;
- } num;
+ mp_intmax_t nums; /* signed */
+ mp_uintmax_t numu; /* unsigned */
double dnum;
- } data;
+ } val;
+};
+
+/*
+ * Describes an output segment.
+ */
+struct outsegment {
+ int width; /* width OR width parameter number */
+ int precision; /* precision OR precision parameter number */
+ unsigned int flags;
+ unsigned int input; /* input argument array index */
+ char *start; /* format string start to output */
+ size_t outlen; /* number of bytes from the format string to output */
};
struct nsprintf {
@@ -173,114 +178,120 @@ struct asprintf {
char merr;
};
-static long dprintf_DollarString(char *input, char **end)
-{
- int number = 0;
- while(ISDIGIT(*input)) {
- if(number < MAX_PARAMETERS) {
- number *= 10;
- number += *input - '0';
- }
- input++;
- }
- if(number <= MAX_PARAMETERS && ('$' == *input)) {
- *end = ++input;
- return number;
- }
- return 0;
-}
+/* the provided input number is 1-based but this returns the number 0-based.
-static bool dprintf_IsQualifierNoDollar(const char *fmt)
+ returns -1 if no valid number was provided.
+*/
+static int dollarstring(char *input, char **end)
{
-#if defined(MP_HAVE_INT_EXTENSIONS)
- if(!strncmp(fmt, "I32", 3) || !strncmp(fmt, "I64", 3)) {
- return TRUE;
- }
-#endif
-
- switch(*fmt) {
- case '-': case '+': case ' ': case '#': case '.':
- case '0': case '1': case '2': case '3': case '4':
- case '5': case '6': case '7': case '8': case '9':
- case 'h': case 'l': case 'L': case 'z': case 'q':
- case '*': case 'O':
-#if defined(MP_HAVE_INT_EXTENSIONS)
- case 'I':
-#endif
- return TRUE;
+ if(ISDIGIT(*input)) {
+ int number = 0;
+ do {
+ if(number < MAX_PARAMETERS) {
+ number *= 10;
+ number += *input - '0';
+ }
+ input++;
+ } while(ISDIGIT(*input));
- default:
- return FALSE;
+ if(number && (number <= MAX_PARAMETERS) && ('$' == *input)) {
+ *end = ++input;
+ return number - 1;
+ }
}
+ return -1;
}
-/******************************************************************
+/*
+ * Parse the format string.
*
- * Pass 1:
- * Create an index with the type of each parameter entry and its
- * value (may vary in size)
+ * Create two arrays. One describes the inputs, one describes the outputs.
*
* Returns zero on success.
- *
- ******************************************************************/
+ */
-static int dprintf_Pass1(const char *format, struct va_stack *vto,
- char **endpos, va_list arglist)
+#define PFMT_OK 0
+#define PFMT_DOLLAR 1 /* bad dollar for main param */
+#define PFMT_DOLLARWIDTH 2 /* bad dollar use for width */
+#define PFMT_DOLLARPREC 3 /* bad dollar use for precision */
+#define PFMT_MANYARGS 4 /* too many input arguments used */
+#define PFMT_PREC 5 /* precision overflow */
+#define PFMT_PRECMIX 6 /* bad mix of precision specifiers */
+#define PFMT_WIDTH 7 /* width overflow */
+#define PFMT_INPUTGAP 8 /* gap in arguments */
+#define PFMT_WIDTHARG 9 /* attempted to use same arg twice, for width */
+#define PFMT_PRECARG 10 /* attempted to use same arg twice, for prec */
+#define PFMT_MANYSEGS 11 /* maxed out output segments */
+
+static int parsefmt(const char *format,
+ struct outsegment *out,
+ struct va_input *in,
+ int *opieces,
+ int *ipieces, va_list arglist)
{
char *fmt = (char *)format;
int param_num = 0;
- long this_param;
- long width;
- long precision;
- int flags;
- long max_param = 0;
- long i;
+ int param;
+ int width;
+ int precision;
+ unsigned int flags;
+ FormatType type;
+ int max_param = -1;
+ int i;
+ int ocount = 0;
+ unsigned char usedinput[MAX_PARAMETERS/8];
+ size_t outlen = 0;
+ struct outsegment *optr;
+ int use_dollar = DOLLAR_UNKNOWN;
+ char *start = fmt;
+
+ /* clear, set a bit for each used input */
+ memset(usedinput, 0, sizeof(usedinput));
while(*fmt) {
- if(*fmt++ == '%') {
+ if(*fmt == '%') {
+ struct va_input *iptr;
+ bool loopit = TRUE;
+ fmt++;
+ outlen = fmt - start - 1;
if(*fmt == '%') {
+ /* this means a %% that should be output only as %. Create an output
+ segment. */
+ if(outlen) {
+ optr = &out[ocount++];
+ if(ocount > MAX_SEGMENTS)
+ return PFMT_MANYSEGS;
+ optr->input = 0;
+ optr->flags = FLAGS_SUBSTR;
+ optr->start = start;
+ optr->outlen = outlen;
+ }
+ start = fmt;
fmt++;
continue; /* while */
}
- flags = FLAGS_NEW;
-
- /* Handle the positional case (N$) */
-
- param_num++;
-
- this_param = dprintf_DollarString(fmt, &fmt);
- if(0 == this_param)
- /* we got no positional, get the next counter */
- this_param = param_num;
-
- if(this_param > max_param)
- max_param = this_param;
+ flags = width = precision = 0;
- /*
- * The parameter with number 'i' should be used. Next, we need
- * to get SIZE and TYPE of the parameter. Add the information
- * to our array.
- */
+ if(use_dollar != DOLLAR_NOPE) {
+ param = dollarstring(fmt, &fmt);
+ if(param < 0) {
+ if(use_dollar == DOLLAR_USE)
+ /* illegal combo */
+ return PFMT_DOLLAR;
- width = 0;
- precision = 0;
-
- /* Handle the flags */
-
- while(dprintf_IsQualifierNoDollar(fmt)) {
-#if defined(MP_HAVE_INT_EXTENSIONS)
- if(!strncmp(fmt, "I32", 3)) {
- flags |= FLAGS_LONG;
- fmt += 3;
- }
- else if(!strncmp(fmt, "I64", 3)) {
- flags |= FLAGS_LONGLONG;
- fmt += 3;
+ /* we got no positional, just get the next arg */
+ param = -1;
+ use_dollar = DOLLAR_NOPE;
}
else
-#endif
+ use_dollar = DOLLAR_USE;
+ }
+ else
+ param = -1;
+ /* Handle the flags */
+ while(loopit) {
switch(*fmt++) {
case ' ':
flags |= FLAGS_SPACE;
@@ -298,40 +309,63 @@ static int dprintf_Pass1(const char *format, struct va_stack *vto,
case '.':
if('*' == *fmt) {
/* The precision is picked from a specified parameter */
-
flags |= FLAGS_PRECPARAM;
fmt++;
- param_num++;
- i = dprintf_DollarString(fmt, &fmt);
- if(i)
- precision = i;
+ if(use_dollar == DOLLAR_USE) {
+ precision = dollarstring(fmt, &fmt);
+ if(precision < 0)
+ /* illegal combo */
+ return PFMT_DOLLARPREC;
+ }
else
- precision = param_num;
-
- if(precision > max_param)
- max_param = precision;
+ /* get it from the next argument */
+ precision = -1;
}
else {
+ bool is_neg = FALSE;
flags |= FLAGS_PREC;
- precision = strtol(fmt, &fmt, 10);
+ precision = 0;
+ if('-' == *fmt) {
+ is_neg = TRUE;
+ fmt++;
+ }
+ while(ISDIGIT(*fmt)) {
+ if(precision > INT_MAX/10)
+ return PFMT_PREC;
+ precision *= 10;
+ precision += *fmt - '0';
+ fmt++;
+ }
+ if(is_neg)
+ precision = -precision;
}
if((flags & (FLAGS_PREC | FLAGS_PRECPARAM)) ==
(FLAGS_PREC | FLAGS_PRECPARAM))
/* it is not permitted to use both kinds of precision for the same
argument */
- return 1;
+ return PFMT_PRECMIX;
break;
case 'h':
flags |= FLAGS_SHORT;
break;
#if defined(MP_HAVE_INT_EXTENSIONS)
case 'I':
+ if((fmt[0] == '3') && (fmt[1] == '2')) {
+ flags |= FLAGS_LONG;
+ fmt += 2;
+ }
+ else if((fmt[0] == '6') && (fmt[1] == '4')) {
+ flags |= FLAGS_LONGLONG;
+ fmt += 2;
+ }
+ else {
#if (SIZEOF_CURL_OFF_T > SIZEOF_LONG)
- flags |= FLAGS_LONGLONG;
+ flags |= FLAGS_LONGLONG;
#else
- flags |= FLAGS_LONG;
+ flags |= FLAGS_LONG;
#endif
+ }
break;
#endif
case 'l':
@@ -369,398 +403,417 @@ static int dprintf_Pass1(const char *format, struct va_stack *vto,
case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
flags |= FLAGS_WIDTH;
- width = strtol(fmt-1, &fmt, 10);
+ width = 0;
+ fmt--;
+ do {
+ if(width > INT_MAX/10)
+ return PFMT_WIDTH;
+ width *= 10;
+ width += *fmt - '0';
+ fmt++;
+ } while(ISDIGIT(*fmt));
break;
- case '*': /* Special case */
+ case '*': /* read width from argument list */
flags |= FLAGS_WIDTHPARAM;
- param_num++;
-
- i = dprintf_DollarString(fmt, &fmt);
- if(i)
- width = i;
+ if(use_dollar == DOLLAR_USE) {
+ width = dollarstring(fmt, &fmt);
+ if(width < 0)
+ /* illegal combo */
+ return PFMT_DOLLARWIDTH;
+ }
else
- width = param_num;
- if(width > max_param)
- max_param = width;
+ /* pick from the next argument */
+ width = -1;
break;
- case '\0':
- fmt--;
- FALLTHROUGH();
default:
+ loopit = FALSE;
+ fmt--;
break;
- }
- } /* switch */
-
- /* Handle the specifier */
-
- i = this_param - 1;
-
- if((i < 0) || (i >= MAX_PARAMETERS))
- /* out of allowed range */
- return 1;
+ } /* switch */
+ } /* while */
switch(*fmt) {
case 'S':
flags |= FLAGS_ALT;
FALLTHROUGH();
case 's':
- vto[i].type = FORMAT_STRING;
+ type = FORMAT_STRING;
break;
case 'n':
- vto[i].type = FORMAT_INTPTR;
+ type = FORMAT_INTPTR;
break;
case 'p':
- vto[i].type = FORMAT_PTR;
+ type = FORMAT_PTR;
break;
- case 'd': case 'i':
- vto[i].type = FORMAT_INT;
+ case 'd':
+ case 'i':
+ if(flags & FLAGS_LONGLONG)
+ type = FORMAT_LONGLONG;
+ else if(flags & FLAGS_LONG)
+ type = FORMAT_LONG;
+ else
+ type = FORMAT_INT;
break;
case 'u':
- vto[i].type = FORMAT_INT;
+ if(flags & FLAGS_LONGLONG)
+ type = FORMAT_LONGLONGU;
+ else if(flags & FLAGS_LONG)
+ type = FORMAT_LONGU;
+ else
+ type = FORMAT_INTU;
flags |= FLAGS_UNSIGNED;
break;
case 'o':
- vto[i].type = FORMAT_INT;
+ type = FORMAT_INT;
flags |= FLAGS_OCTAL;
break;
case 'x':
- vto[i].type = FORMAT_INT;
+ type = FORMAT_INTU;
flags |= FLAGS_HEX|FLAGS_UNSIGNED;
break;
case 'X':
- vto[i].type = FORMAT_INT;
+ type = FORMAT_INTU;
flags |= FLAGS_HEX|FLAGS_UPPER|FLAGS_UNSIGNED;
break;
case 'c':
- vto[i].type = FORMAT_INT;
+ type = FORMAT_INT;
flags |= FLAGS_CHAR;
break;
case 'f':
- vto[i].type = FORMAT_DOUBLE;
+ type = FORMAT_DOUBLE;
break;
case 'e':
- vto[i].type = FORMAT_DOUBLE;
+ type = FORMAT_DOUBLE;
flags |= FLAGS_FLOATE;
break;
case 'E':
- vto[i].type = FORMAT_DOUBLE;
+ type = FORMAT_DOUBLE;
flags |= FLAGS_FLOATE|FLAGS_UPPER;
break;
case 'g':
- vto[i].type = FORMAT_DOUBLE;
+ type = FORMAT_DOUBLE;
flags |= FLAGS_FLOATG;
break;
case 'G':
- vto[i].type = FORMAT_DOUBLE;
+ type = FORMAT_DOUBLE;
flags |= FLAGS_FLOATG|FLAGS_UPPER;
break;
default:
- vto[i].type = FORMAT_UNKNOWN;
- break;
+ /* invalid instruction, disregard and continue */
+ continue;
} /* switch */
- vto[i].flags = flags;
- vto[i].width = width;
- vto[i].precision = precision;
-
if(flags & FLAGS_WIDTHPARAM) {
- /* we have the width specified from a parameter, so we make that
- parameter's info setup properly */
- long k = width - 1;
- if((k < 0) || (k >= MAX_PARAMETERS))
- /* out of allowed range */
- return 1;
- vto[i].width = k;
- vto[k].type = FORMAT_WIDTH;
- vto[k].flags = FLAGS_NEW;
- /* can't use width or precision of width! */
- vto[k].width = 0;
- vto[k].precision = 0;
+ if(width < 0)
+ width = param_num++;
+ else {
+ /* if this identifies a parameter already used, this
+ is illegal */
+ if(usedinput[width/8] & (1 << (width&7)))
+ return PFMT_WIDTHARG;
+ }
+ if(width >= MAX_PARAMETERS)
+ return PFMT_MANYARGS;
+ if(width >= max_param)
+ max_param = width;
+
+ in[width].type = FORMAT_WIDTH;
+ /* mark as used */
+ usedinput[width/8] |= (unsigned char)(1 << (width&7));
}
+
if(flags & FLAGS_PRECPARAM) {
- /* we have the precision specified from a parameter, so we make that
- parameter's info setup properly */
- long k = precision - 1;
- if((k < 0) || (k >= MAX_PARAMETERS))
- /* out of allowed range */
- return 1;
- vto[i].precision = k;
- vto[k].type = FORMAT_WIDTH;
- vto[k].flags = FLAGS_NEW;
- /* can't use width or precision of width! */
- vto[k].width = 0;
- vto[k].precision = 0;
+ if(precision < 0)
+ precision = param_num++;
+ else {
+ /* if this identifies a parameter already used, this
+ is illegal */
+ if(usedinput[precision/8] & (1 << (precision&7)))
+ return PFMT_PRECARG;
+ }
+ if(precision >= MAX_PARAMETERS)
+ return PFMT_MANYARGS;
+ if(precision >= max_param)
+ max_param = precision;
+
+ in[precision].type = FORMAT_PRECISION;
+ usedinput[precision/8] |= (unsigned char)(1 << (precision&7));
}
- *endpos++ = fmt + ((*fmt == '\0') ? 0 : 1); /* end of this sequence */
+
+ /* Handle the specifier */
+ if(param < 0)
+ param = param_num++;
+ if(param >= MAX_PARAMETERS)
+ return PFMT_MANYARGS;
+ if(param >= max_param)
+ max_param = param;
+
+ iptr = &in[param];
+ iptr->type = type;
+
+ /* mark this input as used */
+ usedinput[param/8] |= (unsigned char)(1 << (param&7));
+
+ fmt++;
+ optr = &out[ocount++];
+ if(ocount > MAX_SEGMENTS)
+ return PFMT_MANYSEGS;
+ optr->input = param;
+ optr->flags = flags;
+ optr->width = width;
+ optr->precision = precision;
+ optr->start = start;
+ optr->outlen = outlen;
+ start = fmt;
}
+ else
+ fmt++;
}
- /* Read the arg list parameters into our data list */
- for(i = 0; i<max_param; i++) {
- /* Width/precision arguments must be read before the main argument
- they are attached to */
- if(vto[i].flags & FLAGS_WIDTHPARAM) {
- vto[vto[i].width].data.num.as_signed =
- (mp_intmax_t)va_arg(arglist, int);
- }
- if(vto[i].flags & FLAGS_PRECPARAM) {
- vto[vto[i].precision].data.num.as_signed =
- (mp_intmax_t)va_arg(arglist, int);
- }
+ /* is there a trailing piece */
+ outlen = fmt - start;
+ if(outlen) {
+ optr = &out[ocount++];
+ if(ocount > MAX_SEGMENTS)
+ return PFMT_MANYSEGS;
+ optr->input = 0;
+ optr->flags = FLAGS_SUBSTR;
+ optr->start = start;
+ optr->outlen = outlen;
+ }
- switch(vto[i].type) {
+ /* Read the arg list parameters into our data list */
+ for(i = 0; i < max_param + 1; i++) {
+ struct va_input *iptr = &in[i];
+ if(!(usedinput[i/8] & (1 << (i&7))))
+ /* bad input */
+ return PFMT_INPUTGAP;
+
+ /* based on the type, read the correct argument */
+ switch(iptr->type) {
case FORMAT_STRING:
- vto[i].data.str = va_arg(arglist, char *);
+ iptr->val.str = va_arg(arglist, char *);
break;
case FORMAT_INTPTR:
- case FORMAT_UNKNOWN:
case FORMAT_PTR:
- vto[i].data.ptr = va_arg(arglist, void *);
+ iptr->val.ptr = va_arg(arglist, void *);
break;
- case FORMAT_INT:
-#ifdef HAVE_LONG_LONG_TYPE
- if((vto[i].flags & FLAGS_LONGLONG) && (vto[i].flags & FLAGS_UNSIGNED))
- vto[i].data.num.as_unsigned =
- (mp_uintmax_t)va_arg(arglist, mp_uintmax_t);
- else if(vto[i].flags & FLAGS_LONGLONG)
- vto[i].data.num.as_signed =
- (mp_intmax_t)va_arg(arglist, mp_intmax_t);
- else
-#endif
- {
- if((vto[i].flags & FLAGS_LONG) && (vto[i].flags & FLAGS_UNSIGNED))
- vto[i].data.num.as_unsigned =
- (mp_uintmax_t)va_arg(arglist, unsigned long);
- else if(vto[i].flags & FLAGS_LONG)
- vto[i].data.num.as_signed =
- (mp_intmax_t)va_arg(arglist, long);
- else if(vto[i].flags & FLAGS_UNSIGNED)
- vto[i].data.num.as_unsigned =
- (mp_uintmax_t)va_arg(arglist, unsigned int);
- else
- vto[i].data.num.as_signed =
- (mp_intmax_t)va_arg(arglist, int);
- }
+ case FORMAT_LONGLONGU:
+ iptr->val.numu = (mp_uintmax_t)va_arg(arglist, mp_uintmax_t);
break;
- case FORMAT_DOUBLE:
- vto[i].data.dnum = va_arg(arglist, double);
+ case FORMAT_LONGLONG:
+ iptr->val.nums = (mp_intmax_t)va_arg(arglist, mp_intmax_t);
break;
+ case FORMAT_LONGU:
+ iptr->val.numu = (mp_uintmax_t)va_arg(arglist, unsigned long);
+ break;
+
+ case FORMAT_LONG:
+ iptr->val.nums = (mp_intmax_t)va_arg(arglist, long);
+ break;
+
+ case FORMAT_INTU:
+ iptr->val.numu = (mp_uintmax_t)va_arg(arglist, unsigned int);
+ break;
+
+ case FORMAT_INT:
case FORMAT_WIDTH:
- /* Argument has been read. Silently convert it into an integer
- * for later use
- */
- vto[i].type = FORMAT_INT;
+ case FORMAT_PRECISION:
+ iptr->val.nums = (mp_intmax_t)va_arg(arglist, int);
+ break;
+
+ case FORMAT_DOUBLE:
+ iptr->val.dnum = va_arg(arglist, double);
break;
default:
+ DEBUGASSERT(NULL); /* unexpected */
break;
}
}
+ *ipieces = max_param + 1;
+ *opieces = ocount;
- return 0;
-
+ return PFMT_OK;
}
-static int dprintf_formatf(
- void *data, /* untouched by format(), just sent to the stream() function in
- the second argument */
+/*
+ * formatf() - the general printf function.
+ *
+ * It calls parsefmt() to parse the format string. It populates two arrays;
+ * one that describes the input arguments and one that describes a number of
+ * output segments.
+ *
+ * On success, the input array describes the type of all arguments and their
+ * values.
+ *
+ * The function then iterates over the output sengments and outputs them one
+ * by one until done. Using the appropriate input arguments (if any).
+ *
+ * All output is sent to the 'stream()' callback, one byte at a time.
+ */
+
+static int formatf(
+ void *userp, /* untouched by format(), just sent to the stream() function in
+ the second argument */
/* function pointer called for each output character */
- int (*stream)(int, FILE *),
+ int (*stream)(unsigned char, void *),
const char *format, /* %-formatted string */
va_list ap_save) /* list of parameters */
{
- /* Base-36 digits for numbers. */
- const char *digits = lower_digits;
-
- /* Pointer into the format string. */
- char *f;
-
- /* Number of characters written. */
- int done = 0;
-
- long param; /* current parameter to read */
- long param_num = 0; /* parameter counter */
-
- struct va_stack vto[MAX_PARAMETERS];
- char *endpos[MAX_PARAMETERS];
- char **end;
+ static const char nilstr[] = "(nil)";
+ const char *digits = lower_digits; /* Base-36 digits for numbers. */
+ int done = 0; /* number of characters written */
+ int i;
+ int ocount = 0; /* number of output segments */
+ int icount = 0; /* number of input arguments */
+
+ struct outsegment output[MAX_SEGMENTS];
+ struct va_input input[MAX_PARAMETERS];
char work[BUFFSIZE];
- struct va_stack *p;
/* 'workend' points to the final buffer byte position, but with an extra
byte as margin to avoid the (false?) warning Coverity gives us
otherwise */
char *workend = &work[sizeof(work) - 2];
- /* Do the actual %-code parsing */
- if(dprintf_Pass1(format, vto, endpos, ap_save))
+ /* Parse the format string */
+ if(parsefmt(format, output, input, &ocount, &icount, ap_save))
return 0;
- end = &endpos[0]; /* the initial end-position from the list dprintf_Pass1()
- created for us */
-
- f = (char *)format;
- while(*f != '\0') {
- /* Format spec modifiers. */
- int is_alt;
-
- /* Width of a field. */
- long width;
-
- /* Precision of a field. */
- long prec;
-
- /* Decimal integer is negative. */
- int is_neg;
-
- /* Base of a number to be written. */
- unsigned long base;
-
- /* Integral values to be written. */
- mp_uintmax_t num;
-
- /* Used to convert negative in positive. */
- mp_intmax_t signed_num;
-
+ for(i = 0; i < ocount; i++) {
+ struct outsegment *optr = &output[i];
+ struct va_input *iptr;
+ bool is_alt; /* Format spec modifiers. */
+ int width; /* Width of a field. */
+ int prec; /* Precision of a field. */
+ bool is_neg; /* Decimal integer is negative. */
+ unsigned long base; /* Base of a number to be written. */
+ mp_uintmax_t num; /* Integral values to be written. */
+ mp_intmax_t signed_num; /* Used to convert negative in positive. */
char *w;
-
- if(*f != '%') {
- /* This isn't a format spec, so write everything out until the next one
- OR end of string is reached. */
- do {
- OUTCHAR(*f);
- } while(*++f && ('%' != *f));
- continue;
+ size_t outlen = optr->outlen;
+ int flags = optr->flags;
+
+ if(outlen) {
+ char *str = optr->start;
+ for(; outlen && *str; outlen--)
+ OUTCHAR(*str++);
+ if(optr->flags & FLAGS_SUBSTR)
+ /* this is just a substring */
+ continue;
}
- ++f;
-
- /* Check for "%%". Note that although the ANSI standard lists
- '%' as a conversion specifier, it says "The complete format
- specification shall be `%%'," so we can avoid all the width
- and precision processing. */
- if(*f == '%') {
- ++f;
- OUTCHAR('%');
- continue;
- }
-
- /* If this is a positional parameter, the position must follow immediately
- after the %, thus create a %<num>$ sequence */
- param = dprintf_DollarString(f, &f);
-
- if(!param)
- param = param_num;
- else
- --param;
-
- param_num++; /* increase this always to allow "%2$s %1$s %s" and then the
- third %s will pick the 3rd argument */
-
- p = &vto[param];
-
/* pick up the specified width */
- if(p->flags & FLAGS_WIDTHPARAM) {
- width = (long)vto[p->width].data.num.as_signed;
- param_num++; /* since the width is extracted from a parameter, we
- must skip that to get to the next one properly */
+ if(flags & FLAGS_WIDTHPARAM) {
+ width = (int)input[optr->width].val.nums;
if(width < 0) {
/* "A negative field width is taken as a '-' flag followed by a
positive field width." */
- width = -width;
- p->flags |= FLAGS_LEFT;
- p->flags &= ~FLAGS_PAD_NIL;
+ if(width == INT_MIN)
+ width = INT_MAX;
+ else
+ width = -width;
+ flags |= FLAGS_LEFT;
+ flags &= ~FLAGS_PAD_NIL;
}
}
else
- width = p->width;
+ width = optr->width;
/* pick up the specified precision */
- if(p->flags & FLAGS_PRECPARAM) {
- prec = (long)vto[p->precision].data.num.as_signed;
- param_num++; /* since the precision is extracted from a parameter, we
- must skip that to get to the next one properly */
+ if(flags & FLAGS_PRECPARAM) {
+ prec = (int)input[optr->precision].val.nums;
if(prec < 0)
/* "A negative precision is taken as if the precision were
omitted." */
prec = -1;
}
- else if(p->flags & FLAGS_PREC)
- prec = p->precision;
+ else if(flags & FLAGS_PREC)
+ prec = optr->precision;
else
prec = -1;
- is_alt = (p->flags & FLAGS_ALT) ? 1 : 0;
+ is_alt = (flags & FLAGS_ALT) ? 1 : 0;
+ iptr = &input[optr->input];
- switch(p->type) {
+ switch(iptr->type) {
+ case FORMAT_INTU:
+ case FORMAT_LONGU:
+ case FORMAT_LONGLONGU:
+ flags |= FLAGS_UNSIGNED;
+ FALLTHROUGH();
case FORMAT_INT:
- num = p->data.num.as_unsigned;
- if(p->flags & FLAGS_CHAR) {
+ case FORMAT_LONG:
+ case FORMAT_LONGLONG:
+ num = iptr->val.numu;
+ if(flags & FLAGS_CHAR) {
/* Character. */
- if(!(p->flags & FLAGS_LEFT))
+ if(!(flags & FLAGS_LEFT))
while(--width > 0)
OUTCHAR(' ');
OUTCHAR((char) num);
- if(p->flags & FLAGS_LEFT)
+ if(flags & FLAGS_LEFT)
while(--width > 0)
OUTCHAR(' ');
break;
}
- if(p->flags & FLAGS_OCTAL) {
- /* Octal unsigned integer. */
+ if(flags & FLAGS_OCTAL) {
+ /* Octal unsigned integer */
base = 8;
- goto unsigned_number;
+ is_neg = FALSE;
}
- else if(p->flags & FLAGS_HEX) {
- /* Hexadecimal unsigned integer. */
-
- digits = (p->flags & FLAGS_UPPER)? upper_digits : lower_digits;
+ else if(flags & FLAGS_HEX) {
+ /* Hexadecimal unsigned integer */
+ digits = (flags & FLAGS_UPPER)? upper_digits : lower_digits;
base = 16;
- goto unsigned_number;
+ is_neg = FALSE;
}
- else if(p->flags & FLAGS_UNSIGNED) {
- /* Decimal unsigned integer. */
+ else if(flags & FLAGS_UNSIGNED) {
+ /* Decimal unsigned integer */
base = 10;
- goto unsigned_number;
+ is_neg = FALSE;
}
+ else {
+ /* Decimal integer. */
+ base = 10;
- /* Decimal integer. */
- base = 10;
-
- is_neg = (p->data.num.as_signed < (mp_intmax_t)0) ? 1 : 0;
- if(is_neg) {
- /* signed_num might fail to hold absolute negative minimum by 1 */
- signed_num = p->data.num.as_signed + (mp_intmax_t)1;
- signed_num = -signed_num;
- num = (mp_uintmax_t)signed_num;
- num += (mp_uintmax_t)1;
+ is_neg = (iptr->val.nums < (mp_intmax_t)0);
+ if(is_neg) {
+ /* signed_num might fail to hold absolute negative minimum by 1 */
+ signed_num = iptr->val.nums + (mp_intmax_t)1;
+ signed_num = -signed_num;
+ num = (mp_uintmax_t)signed_num;
+ num += (mp_uintmax_t)1;
+ }
}
-
- goto number;
-
-unsigned_number:
- /* Unsigned number of base BASE. */
- is_neg = 0;
-
number:
- /* Number of base BASE. */
-
/* Supply a default precision if none was given. */
if(prec == -1)
prec = 1;
/* Put the number in WORK. */
w = workend;
- while(num > 0) {
- *w-- = digits[num % base];
- num /= base;
+ switch(base) {
+ case 10:
+ while(num > 0) {
+ *w-- = (char)('0' + (num % 10));
+ num /= 10;
+ }
+ break;
+ default:
+ while(num > 0) {
+ *w-- = digits[num % base];
+ num /= base;
+ }
+ break;
}
- width -= (long)(workend - w);
- prec -= (long)(workend - w);
+ width -= (int)(workend - w);
+ prec -= (int)(workend - w);
if(is_alt && base == 8 && prec <= 0) {
*w-- = '0';
@@ -776,29 +829,29 @@ number:
if(is_alt && base == 16)
width -= 2;
- if(is_neg || (p->flags & FLAGS_SHOWSIGN) || (p->flags & FLAGS_SPACE))
+ if(is_neg || (flags & FLAGS_SHOWSIGN) || (flags & FLAGS_SPACE))
--width;
- if(!(p->flags & FLAGS_LEFT) && !(p->flags & FLAGS_PAD_NIL))
+ if(!(flags & FLAGS_LEFT) && !(flags & FLAGS_PAD_NIL))
while(width-- > 0)
OUTCHAR(' ');
if(is_neg)
OUTCHAR('-');
- else if(p->flags & FLAGS_SHOWSIGN)
+ else if(flags & FLAGS_SHOWSIGN)
OUTCHAR('+');
- else if(p->flags & FLAGS_SPACE)
+ else if(flags & FLAGS_SPACE)
OUTCHAR(' ');
if(is_alt && base == 16) {
OUTCHAR('0');
- if(p->flags & FLAGS_UPPER)
+ if(flags & FLAGS_UPPER)
OUTCHAR('X');
else
OUTCHAR('x');
}
- if(!(p->flags & FLAGS_LEFT) && (p->flags & FLAGS_PAD_NIL))
+ if(!(flags & FLAGS_LEFT) && (flags & FLAGS_PAD_NIL))
while(width-- > 0)
OUTCHAR('0');
@@ -807,219 +860,199 @@ number:
OUTCHAR(*w);
}
- if(p->flags & FLAGS_LEFT)
+ if(flags & FLAGS_LEFT)
while(width-- > 0)
OUTCHAR(' ');
break;
- case FORMAT_STRING:
- /* String. */
- {
- static const char null[] = "(nil)";
- const char *str;
- size_t len;
-
- str = (char *) p->data.str;
- if(!str) {
- /* Write null[] if there's space. */
- if(prec == -1 || prec >= (long) sizeof(null) - 1) {
- str = null;
- len = sizeof(null) - 1;
- /* Disable quotes around (nil) */
- p->flags &= (~FLAGS_ALT);
- }
- else {
- str = "";
- len = 0;
- }
+ case FORMAT_STRING: {
+ const char *str;
+ size_t len;
+
+ str = (char *)iptr->val.str;
+ if(!str) {
+ /* Write null string if there's space. */
+ if(prec == -1 || prec >= (int) sizeof(nilstr) - 1) {
+ str = nilstr;
+ len = sizeof(nilstr) - 1;
+ /* Disable quotes around (nil) */
+ flags &= (~FLAGS_ALT);
}
- else if(prec != -1)
- len = (size_t)prec;
- else if(*str == '\0')
+ else {
+ str = "";
len = 0;
- else
- len = strlen(str);
+ }
+ }
+ else if(prec != -1)
+ len = (size_t)prec;
+ else if(*str == '\0')
+ len = 0;
+ else
+ len = strlen(str);
- width -= (len > LONG_MAX) ? LONG_MAX : (long)len;
+ width -= (len > INT_MAX) ? INT_MAX : (int)len;
- if(p->flags & FLAGS_ALT)
- OUTCHAR('"');
+ if(flags & FLAGS_ALT)
+ OUTCHAR('"');
- if(!(p->flags&FLAGS_LEFT))
- while(width-- > 0)
- OUTCHAR(' ');
+ if(!(flags&FLAGS_LEFT))
+ while(width-- > 0)
+ OUTCHAR(' ');
- for(; len && *str; len--)
- OUTCHAR(*str++);
- if(p->flags&FLAGS_LEFT)
- while(width-- > 0)
- OUTCHAR(' ');
+ for(; len && *str; len--)
+ OUTCHAR(*str++);
+ if(flags&FLAGS_LEFT)
+ while(width-- > 0)
+ OUTCHAR(' ');
- if(p->flags & FLAGS_ALT)
- OUTCHAR('"');
- }
+ if(flags & FLAGS_ALT)
+ OUTCHAR('"');
break;
+ }
case FORMAT_PTR:
/* Generic pointer. */
- {
- void *ptr;
- ptr = (void *) p->data.ptr;
- if(ptr) {
- /* If the pointer is not NULL, write it as a %#x spec. */
- base = 16;
- digits = (p->flags & FLAGS_UPPER)? upper_digits : lower_digits;
- is_alt = 1;
- num = (size_t) ptr;
- is_neg = 0;
- goto number;
- }
- else {
- /* Write "(nil)" for a nil pointer. */
- static const char strnil[] = "(nil)";
- const char *point;
-
- width -= (long)(sizeof(strnil) - 1);
- if(p->flags & FLAGS_LEFT)
- while(width-- > 0)
- OUTCHAR(' ');
- for(point = strnil; *point != '\0'; ++point)
- OUTCHAR(*point);
- if(!(p->flags & FLAGS_LEFT))
- while(width-- > 0)
- OUTCHAR(' ');
- }
+ if(iptr->val.ptr) {
+ /* If the pointer is not NULL, write it as a %#x spec. */
+ base = 16;
+ digits = (flags & FLAGS_UPPER)? upper_digits : lower_digits;
+ is_alt = TRUE;
+ num = (size_t) iptr->val.ptr;
+ is_neg = FALSE;
+ goto number;
}
- break;
+ else {
+ /* Write "(nil)" for a nil pointer. */
+ const char *point;
- case FORMAT_DOUBLE:
- {
- char formatbuf[32]="%";
- char *fptr = &formatbuf[1];
- size_t left = sizeof(formatbuf)-strlen(formatbuf);
- int len;
-
- width = -1;
- if(p->flags & FLAGS_WIDTH)
- width = p->width;
- else if(p->flags & FLAGS_WIDTHPARAM)
- width = (long)vto[p->width].data.num.as_signed;
+ width -= (int)(sizeof(nilstr) - 1);
+ if(flags & FLAGS_LEFT)
+ while(width-- > 0)
+ OUTCHAR(' ');
+ for(point = nilstr; *point != '\0'; ++point)
+ OUTCHAR(*point);
+ if(!(flags & FLAGS_LEFT))
+ while(width-- > 0)
+ OUTCHAR(' ');
+ }
+ break;
- prec = -1;
- if(p->flags & FLAGS_PREC)
- prec = p->precision;
- else if(p->flags & FLAGS_PRECPARAM)
- prec = (long)vto[p->precision].data.num.as_signed;
-
- if(p->flags & FLAGS_LEFT)
- *fptr++ = '-';
- if(p->flags & FLAGS_SHOWSIGN)
- *fptr++ = '+';
- if(p->flags & FLAGS_SPACE)
- *fptr++ = ' ';
- if(p->flags & FLAGS_ALT)
- *fptr++ = '#';
-
- *fptr = 0;
-
- if(width >= 0) {
- if(width >= (long)sizeof(work))
- width = sizeof(work)-1;
- /* RECURSIVE USAGE */
- len = curl_msnprintf(fptr, left, "%ld", width);
- fptr += len;
- left -= len;
+ case FORMAT_DOUBLE: {
+ char formatbuf[32]="%";
+ char *fptr = &formatbuf[1];
+ size_t left = sizeof(formatbuf)-strlen(formatbuf);
+ int len;
+
+ if(flags & FLAGS_WIDTH)
+ width = optr->width;
+
+ if(flags & FLAGS_PREC)
+ prec = optr->precision;
+
+ if(flags & FLAGS_LEFT)
+ *fptr++ = '-';
+ if(flags & FLAGS_SHOWSIGN)
+ *fptr++ = '+';
+ if(flags & FLAGS_SPACE)
+ *fptr++ = ' ';
+ if(flags & FLAGS_ALT)
+ *fptr++ = '#';
+
+ *fptr = 0;
+
+ if(width >= 0) {
+ if(width >= (int)sizeof(work))
+ width = sizeof(work)-1;
+ /* RECURSIVE USAGE */
+ len = curl_msnprintf(fptr, left, "%d", width);
+ fptr += len;
+ left -= len;
+ }
+ if(prec >= 0) {
+ /* for each digit in the integer part, we can have one less
+ precision */
+ size_t maxprec = sizeof(work) - 2;
+ double val = iptr->val.dnum;
+ if(width > 0 && prec <= width)
+ maxprec -= width;
+ while(val >= 10.0) {
+ val /= 10;
+ maxprec--;
}
- if(prec >= 0) {
- /* for each digit in the integer part, we can have one less
- precision */
- size_t maxprec = sizeof(work) - 2;
- double val = p->data.dnum;
- if(width > 0 && prec <= width)
- maxprec -= width;
- while(val >= 10.0) {
- val /= 10;
- maxprec--;
- }
- if(prec > (long)maxprec)
- prec = (long)maxprec-1;
- if(prec < 0)
- prec = 0;
- /* RECURSIVE USAGE */
- len = curl_msnprintf(fptr, left, ".%ld", prec);
- fptr += len;
- }
- if(p->flags & FLAGS_LONG)
- *fptr++ = 'l';
+ if(prec > (int)maxprec)
+ prec = (int)maxprec-1;
+ if(prec < 0)
+ prec = 0;
+ /* RECURSIVE USAGE */
+ len = curl_msnprintf(fptr, left, ".%d", prec);
+ fptr += len;
+ }
+ if(flags & FLAGS_LONG)
+ *fptr++ = 'l';
- if(p->flags & FLAGS_FLOATE)
- *fptr++ = (char)((p->flags & FLAGS_UPPER) ? 'E':'e');
- else if(p->flags & FLAGS_FLOATG)
- *fptr++ = (char)((p->flags & FLAGS_UPPER) ? 'G' : 'g');
- else
- *fptr++ = 'f';
+ if(flags & FLAGS_FLOATE)
+ *fptr++ = (char)((flags & FLAGS_UPPER) ? 'E':'e');
+ else if(flags & FLAGS_FLOATG)
+ *fptr++ = (char)((flags & FLAGS_UPPER) ? 'G' : 'g');
+ else
+ *fptr++ = 'f';
- *fptr = 0; /* and a final null-termination */
+ *fptr = 0; /* and a final null-termination */
#ifdef __clang__
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wformat-nonliteral"
#endif
- /* NOTE NOTE NOTE!! Not all sprintf implementations return number of
- output characters */
+ /* NOTE NOTE NOTE!! Not all sprintf implementations return number of
+ output characters */
#ifdef HAVE_SNPRINTF
- (snprintf)(work, sizeof(work), formatbuf, p->data.dnum);
+ (snprintf)(work, sizeof(work), formatbuf, iptr->val.dnum);
#else
- (sprintf)(work, formatbuf, p->data.dnum);
+ (sprintf)(work, formatbuf, iptr->val.dnum);
#endif
#ifdef __clang__
#pragma clang diagnostic pop
#endif
- DEBUGASSERT(strlen(work) <= sizeof(work));
- for(fptr = work; *fptr; fptr++)
- OUTCHAR(*fptr);
- }
+ DEBUGASSERT(strlen(work) <= sizeof(work));
+ for(fptr = work; *fptr; fptr++)
+ OUTCHAR(*fptr);
break;
+ }
case FORMAT_INTPTR:
/* Answer the count of characters written. */
#ifdef HAVE_LONG_LONG_TYPE
- if(p->flags & FLAGS_LONGLONG)
- *(LONG_LONG_TYPE *) p->data.ptr = (LONG_LONG_TYPE)done;
+ if(flags & FLAGS_LONGLONG)
+ *(LONG_LONG_TYPE *) iptr->val.ptr = (LONG_LONG_TYPE)done;
else
#endif
- if(p->flags & FLAGS_LONG)
- *(long *) p->data.ptr = (long)done;
- else if(!(p->flags & FLAGS_SHORT))
- *(int *) p->data.ptr = (int)done;
+ if(flags & FLAGS_LONG)
+ *(long *) iptr->val.ptr = (long)done;
+ else if(!(flags & FLAGS_SHORT))
+ *(int *) iptr->val.ptr = (int)done;
else
- *(short *) p->data.ptr = (short)done;
+ *(short *) iptr->val.ptr = (short)done;
break;
default:
break;
}
- f = *end++; /* goto end of %-code */
-
}
return done;
}
/* fputc() look-alike */
-static int addbyter(int output, FILE *data)
+static int addbyter(unsigned char outc, void *f)
{
- struct nsprintf *infop = (struct nsprintf *)data;
- char outc = (char)output;
-
+ struct nsprintf *infop = f;
if(infop->length < infop->max) {
/* only do this if we haven't reached max length yet */
- infop->buffer[0] = outc; /* store */
- infop->buffer++; /* increase pointer */
+ *infop->buffer++ = outc; /* store */
infop->length++; /* we are now one byte larger */
- return outc; /* fputc() returns like this on success */
+ return 0; /* fputc() returns like this on success */
}
- return -1;
+ return 1;
}
int curl_mvsnprintf(char *buffer, size_t maxlength, const char *format,
@@ -1032,7 +1065,7 @@ int curl_mvsnprintf(char *buffer, size_t maxlength, const char *format,
info.length = 0;
info.max = maxlength;
- retcode = dprintf_formatf(&info, addbyter, format, ap_save);
+ retcode = formatf(&info, addbyter, format, ap_save);
if(info.max) {
/* we terminate this with a zero byte */
if(info.max == info.length) {
@@ -1058,18 +1091,15 @@ int curl_msnprintf(char *buffer, size_t maxlength, const char *format, ...)
}
/* fputc() look-alike */
-static int alloc_addbyter(int output, FILE *data)
+static int alloc_addbyter(unsigned char outc, void *f)
{
- struct asprintf *infop = (struct asprintf *)data;
- unsigned char outc = (unsigned char)output;
- CURLcode result;
-
- result = Curl_dyn_addn(infop->b, &outc, 1);
+ struct asprintf *infop = f;
+ CURLcode result = Curl_dyn_addn(infop->b, &outc, 1);
if(result) {
infop->merr = result == CURLE_TOO_LARGE ? MERR_TOO_LARGE : MERR_MEM;
- return -1; /* fail */
+ return 1 ; /* fail */
}
- return outc; /* fputc() returns like this on success */
+ return 0;
}
/* appends the formatted string, returns MERR error code */
@@ -1079,7 +1109,7 @@ int Curl_dyn_vprintf(struct dynbuf *dyn, const char *format, va_list ap_save)
info.b = dyn;
info.merr = MERR_OK;
- (void)dprintf_formatf(&info, alloc_addbyter, format, ap_save);
+ (void)formatf(&info, alloc_addbyter, format, ap_save);
if(info.merr) {
Curl_dyn_free(info.b);
return info.merr;
@@ -1095,7 +1125,7 @@ char *curl_mvaprintf(const char *format, va_list ap_save)
Curl_dyn_init(info.b, DYN_APRINTF);
info.merr = MERR_OK;
- (void)dprintf_formatf(&info, alloc_addbyter, format, ap_save);
+ (void)formatf(&info, alloc_addbyter, format, ap_save);
if(info.merr) {
Curl_dyn_free(info.b);
return NULL;
@@ -1115,13 +1145,12 @@ char *curl_maprintf(const char *format, ...)
return s;
}
-static int storebuffer(int output, FILE *data)
+static int storebuffer(unsigned char outc, void *f)
{
- char **buffer = (char **)data;
- unsigned char outc = (unsigned char)output;
+ char **buffer = f;
**buffer = outc;
(*buffer)++;
- return outc; /* act like fputc() ! */
+ return 0;
}
int curl_msprintf(char *buffer, const char *format, ...)
@@ -1129,19 +1158,29 @@ int curl_msprintf(char *buffer, const char *format, ...)
va_list ap_save; /* argument pointer */
int retcode;
va_start(ap_save, format);
- retcode = dprintf_formatf(&buffer, storebuffer, format, ap_save);
+ retcode = formatf(&buffer, storebuffer, format, ap_save);
va_end(ap_save);
*buffer = 0; /* we terminate this with a zero byte */
return retcode;
}
+static int fputc_wrapper(unsigned char outc, void *f)
+{
+ int out = outc;
+ FILE *s = f;
+ int rc = fputc(out, s);
+ if(rc == out)
+ return 0;
+ return 1;
+}
+
int curl_mprintf(const char *format, ...)
{
int retcode;
va_list ap_save; /* argument pointer */
va_start(ap_save, format);
- retcode = dprintf_formatf(stdout, fputc, format, ap_save);
+ retcode = formatf(stdout, fputc_wrapper, format, ap_save);
va_end(ap_save);
return retcode;
}
@@ -1151,25 +1190,24 @@ int curl_mfprintf(FILE *whereto, const char *format, ...)
int retcode;
va_list ap_save; /* argument pointer */
va_start(ap_save, format);
- retcode = dprintf_formatf(whereto, fputc, format, ap_save);
+ retcode = formatf(whereto, fputc_wrapper, format, ap_save);
va_end(ap_save);
return retcode;
}
int curl_mvsprintf(char *buffer, const char *format, va_list ap_save)
{
- int retcode;
- retcode = dprintf_formatf(&buffer, storebuffer, format, ap_save);
+ int retcode = formatf(&buffer, storebuffer, format, ap_save);
*buffer = 0; /* we terminate this with a zero byte */
return retcode;
}
int curl_mvprintf(const char *format, va_list ap_save)
{
- return dprintf_formatf(stdout, fputc, format, ap_save);
+ return formatf(stdout, fputc_wrapper, format, ap_save);
}
int curl_mvfprintf(FILE *whereto, const char *format, va_list ap_save)
{
- return dprintf_formatf(whereto, fputc, format, ap_save);
+ return formatf(whereto, fputc_wrapper, format, ap_save);
}
tests/libtest/lib557.c+42 -14
@@ -1181,12 +1181,49 @@ static int test_string_formatting(void)
return errors;
}
+static int test_pos_arguments(void)
+{
+ int errors = 0;
+ char buf[256];
+
+ curl_msnprintf(buf, sizeof(buf), "%3$d %2$d %1$d", 500, 501, 502);
+ errors += string_check(buf, "502 501 500");
+
+ curl_msnprintf(buf, sizeof(buf), "%3$d %1$d %2$d", 500, 501, 502);
+ errors += string_check(buf, "502 500 501");
+
+ /* this is in invalid sequence but the output does not match
+ what glibc does */
+ curl_msnprintf(buf, sizeof(buf), "%3$d %d %2$d", 500, 501, 502);
+ errors += string_check(buf, "");
+
+ return errors;
+}
+
static int test_weird_arguments(void)
{
int errors = 0;
char buf[256];
int rc;
+ /* verify %% */
+ rc = curl_msnprintf(buf, sizeof(buf), "%-20d%% right? %%", 500);
+ errors += string_check(buf, "500 % right? %");
+
+ /* 100 x % */
+ rc = curl_msnprintf(buf, sizeof(buf), "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%"
+ "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%"
+ "%%%%%%%%%%%%%%%%%%%%%%");
+ /* 50 x % */
+ errors += string_check(buf, "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%"
+ "%%%%%%%%%%%%%%%");
+
+ rc = curl_msnprintf(buf, sizeof(buf), "%2 AA %d %K", 500, 501, 502);
+ errors += string_check(buf, "%2 AA 500 %K");
+
+ rc = curl_msnprintf(buf, sizeof(buf), "%2 %d %K", 500, 501, 502);
+ errors += string_check(buf, "%2 500 %K");
+
/* MAX_PARAMETERS is 128, try exact 128! */
rc = curl_msnprintf(buf, sizeof(buf),
"%d%d%d%d%d%d%d%d%d%d" /* 10 */
@@ -1276,18 +1313,6 @@ static int test_weird_arguments(void)
errors += string_check(buf, "");
- /* Do not skip sanity checks with parameters! */
- buf[0] = 0;
- rc = curl_msnprintf(buf, sizeof(buf), "%d, %.*1$d", 500, 1);
-
- if(rc != sizeof(buf) - 1) {
- printf("curl_mprintf() returned %d and not %zu!\n", rc,
- sizeof(buf) - 1);
- errors++;
- }
-
- errors += strlen_check(buf, 255);
-
if(errors)
printf("Some curl_mprintf() weird arguments tests failed!\n");
@@ -1374,9 +1399,10 @@ static int test_float_formatting(void)
123456789123456789123456789.2987654);
errors += strlen_check(buf, 325);
- /* check negative when used signed */
+ /* check negative width argument when used signed, is treated as positive
+ and maxes out the internal float width == 325 */
curl_msnprintf(buf, sizeof(buf), "%*f", INT_MIN, 9.1);
- errors += string_check(buf, "9.100000");
+ errors += string_check(buf, "9.100000 ");
/* curl_msnprintf() limits a single float output to 325 bytes maximum
width */
@@ -1451,6 +1477,8 @@ int test(char *URL)
setlocale(LC_NUMERIC, "C");
#endif
+ errors += test_pos_arguments();
+
errors += test_weird_arguments();
errors += test_unsigned_short_formatting();
tests/unit/unit1398.c+1 -1
@@ -92,7 +92,7 @@ fail_unless(rc == 15, "return code should be 15");
fail_unless(!strcmp(output, " 1234 567"), "wrong output");
/* double precision */
-rc = curl_msnprintf(output, 24, "%.*1$.99d", 3, 5678);
+rc = curl_msnprintf(output, 24, "%2$.*1$.99d", 3, 5678);
fail_unless(rc == 0, "return code should be 0");
UNITTEST_STOP